/Engine/Source/Runtime/UMG/Public/Components/SizeBox.h
A widget that allows you to specify the size it reports to have and desire. Not all widgets report a desired size that you actually desire. Wrapping them in a SizeBox lets you have the Size Box force them to be a particular size.
class USizeBox : public [UContentWidget](API\Runtime\UMG\Components\UContentWidget)
TSharedPtr<SBo...
MySizeBox